What are the treatments for colorectal cancer?

Hello everyone, do you know anything about colorectal cancer? Do you know anything about the diagnosis of colorectal cancer? The key to the treatment of colorectal cancer lies in early detection and early diagnosis.

1. Chemotherapy: After radical resection of colorectal cancer, about 50% of cases still have recurrence and metastasis, mainly because the hidden metastatic lesions were not found before surgery or the lesions were not completely removed during surgery. Therefore, before laparotomy, intra-intestinal chemotherapy for tumors or preoperative enema for rectal cancer can prevent the spread of cancer cells, kill and eliminate cancer cells. Continuing chemotherapy after surgery may increase the 5-year survival rate after radical resection.

5-fluorouracil is the first choice for chemotherapy of colorectal cancer. It is usually given by intravenous injection, 12-15 mg/kg, once a day for 5 days, then the dose is halved, once every other day, until obvious toxic symptoms such as vomiting and diarrhea appear, and the total amount reaches 8-10g for a course of treatment. This method has a slightly milder reaction and is suitable for outpatient treatment. For patients with liver metastasis, 150-300 mg of 5-fluorouracil can be given daily, orally in divided doses, with a total amount of about 10-15g, which is less effective than intravenous medication. Currently, most people advocate combined chemotherapy, but there is no mature plan. Some people suggest the MFC plan, that is, 5-fluorouracil 500 mg, mitomycin 4 mg, cytarabine 50 mg, combined application, intravenous injection twice a week in the first 1-2 weeks, and once a week thereafter, for a total of 8-10 times as a course of treatment. In addition to gastrointestinal reactions, the toxic symptoms of chemotherapy can also be seen in bone marrow suppression, which must be closely observed. In addition, commonly used chemotherapy drugs include furanfluorouracil, eufotaxime, cyclophosphamide, nitromethamine, nitromethamine and methylnitrosourea.

2. Surgical treatment: The only radical cure for colorectal cancer is early removal of the tumor. If cancer metastasis is found during exploration, but the diseased intestinal curve is still free, the colorectal cancer should be removed in principle to avoid intestinal obstruction in the future; on the other hand, the tumor is often eroded, bleeding or accompanied by secondary infection, and resection can improve the overall condition. For patients with extensive cancer metastasis, if the diseased intestinal segment can no longer be removed, palliative surgery such as fistula or shortcut should be performed.

3. Radiotherapy: The efficacy is still unsatisfactory. Some people believe that: ① Preoperative radiotherapy can shrink the tumor, improve the resection rate, reduce regional lymph node metastasis, intraoperative cancer cell spread and local recurrence; ② Postoperative radiotherapy: For cases that require radical surgery, if the tumor has penetrated the intestinal wall, invaded local lymph nodes, lymphatic vessels and blood vessels, or there are residual tumors after surgery but there is no distant metastasis, postoperative radiotherapy is appropriate; ③ Simple radiotherapy: For cases of advanced rectal cancer, small doses of radiotherapy can sometimes have a temporary hemostatic and analgesic effect.

4. Cryotherapy: Cryotherapy uses liquid nitrogen as a refrigerant. After fully exposing the tumor through an anoscope, cryotherapy uses different sizes of cryotherapy heads to contact the tumor tissue, which can effectively kill and destroy the tumor tissue. When patients in the middle and late stages cannot undergo surgery, it can be used as appropriate to reduce the patient's pain and avoid having an artificial anus. It can also achieve satisfactory results when combined with chemotherapy.

The above is some knowledge about colorectal cancer that we have prepared for you today. We hope it will be helpful to you. If you have any other needs, you can also consult our online consulting experts at Feihua Health Network. We are always here to answer your questions. Feihua Health Network is always by your side and cares about your health issues! Feihua Health Network wishes you good health!

Colorectal cancer: http://www..com.cn/zhongliu/dca/